feat(安全): 添加管理员账户创建和登录验证功能

在安装过程中添加管理员账户创建流程，并在系统启动时进行登录验证
更新系统版本号为 LeonOS Alpha 1.1

data/computercraft/lua/bios.lua

@@ -1,4 +1,4 @@
-_G._HOST = _G._HOST .. " (LeonOS 1.6.0)"
+_G._HOST = _G._HOST .. " (LeonOS Alpha 1.1)"
 
 local fs = rawget(_G, "fs")
 
@@ -184,6 +184,31 @@ end
 
 expect = require("cc.expect").expect
 
+-- Admin login verification
+local tu = require("rom.apis.textutils")
+local admin_username = settings.get("LeonOS.users.admin.username")
+local admin_password = settings.get("LeonOS.users.admin.password")
+
+if admin_username then
+  term.clear()
+  tu.coloredPrint(colors.yellow, "LeonOS Login\n=======================")
+  tu.coloredPrint("Username: ", colors.lightBlue, admin_username)
+  
+  if admin_password then
+    tu.coloredPrint("Password: ")
+    local input_password = read(nil, {}, nil, true) -- Use password mode
+    
+    while input_password ~= admin_password do
+      tu.coloredPrint(colors.red, "Incorrect password!\n")
+      tu.coloredPrint("Password: ")
+      input_password = read(nil, {}, nil, true)
+    end
+  else
+    tu.coloredPrint(colors.green, "No password set. Press Enter to continue.")
+    read()
+  end
+end
+
 local thread = require("rc.thread")
 
 thread.start()

installer.lua

@@ -86,6 +86,28 @@ if #ROM_DIR == 0 then ROM_DIR = DEFAULT_ROM_DIR end
 ROM_DIR = "/"..shell.resolve(ROM_DIR)
 
 settings.set("LeonOS.rom_dir", ROM_DIR)
+
+-- Create admin user
+print("")
+tu.coloredPrint(colors.yellow, "Create Administrator Account\n=======================")
+tu.coloredPrint("Enter admin username: ")
+local admin_username = read()
+while #admin_username == 0 do
+  tu.coloredPrint(colors.red, "Username cannot be empty!\n")
+  tu.coloredPrint("Enter admin username: ")
+  admin_username = read()
+end
+
+tu.coloredPrint("Enter admin password (leave empty for no password): ")
+local admin_password = read(nil, {}, nil, true) -- Use password mode
+
+-- Save user info
+settings.set("LeonOS.users.admin.username", admin_username)
+if #admin_password > 0 then
+  settings.set("LeonOS.users.admin.password", admin_password)
+else
+  settings.set("LeonOS.users.admin.password", nil)
+end
 settings.save()
 
 tu.coloredPrint(colors.white, "Installing LeonOS to ", colors.lightBlue,